jup, it is ridiculous that this is 8 yo tech... and still no other LCD monitor can beat its color performance XDI remember when the DreamColors were a big deal around 8 years ago -- couldn't afford one then, so I went for the "relatively budget" option: the NEC LCD2490WUXI.
I started writing response and somehow lost it XD
Maybe better chance here
You have two options:
1. Get the so called "HP Dreamcolor Calibration Solution" which is i1 Display Pro calibration probe or older model i1 Display 2 and then you can hardware calibrate it
2. Open monitor, remove some kind of gunk from the sensor